Camilla, stepmom to Prince William (now the Duke of Cambridge), wore a silk dress and coat by Anna Valentine Friday morning -- the same designer she chose for her own wedding to Prince Charles in 2005.

"The biggest fashion upset was Camilla Parker-Bowles looking fabulous!" Entertainment Tonight fashion expert Steven Cojocaru tells Us Weekly of her champagne silk dress and hand-embroidered blue coat. "She was spot on in terms of looking perfectly day formal. She looked snazzy and dressed-up and dare I say glamorous."